MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised websites, suggesting a phishing or malware distribution campaign. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://bibliotekaludwin.pl/img/upload/files/xunilafisijo.pdf In PDF document text
- https://hantverksakuten.se/ckfinder/userfiles/files/1240629637.pdfIn PDF document text
- http://puebloexec.com/userfiles/file/25364977481.pdfIn PDF document text
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/6addafe22ce795450f45af8f78a949f6/xupozuraguwexulebola.pdfIn PDF document text
- http://szentdorottyapatika.hu/files/godovutuvetuwak.pdfIn PDF document text
- https://hopclickhospitality.com/scgtest/team-explore/uploads/files/botapabagefozilakagunej.pdfIn PDF document text
- https://robertbah.si/files/file/48836306008.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16134d06b49274---50175012489.pdfIn PDF document text
- http://www.prctech-th.com/ckfinder/userfiles/files/26508118877.pdfIn PDF document text
- https://ms01bet.com/contents/files/bobus.pdfIn PDF document text
- https://netiko.ge/img/Data/file/30597284280.pdfIn PDF document text
- http://premo.at/userfiles/file/10785907773.pdfIn PDF document text
- http://boldino-hotel.com/ckfinder/userfiles/files/31023626090.pdfIn PDF document text
- http://rkmaster.ru/uploads/files/zekafoto.pdfIn PDF document text
- http://perevodvnegiloifond.ru/pict/file/wawujapiperimiz.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/9b545c75516c02b93c56386e5cdda27c/19637856548.pdfIn PDF document text
- http://toyotaquangninh.org/data/dulieu/files/2109164153.pdfIn PDF document text
- http://cdio.vn/uploads/userfiles/file/xurugakakur.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/92907242220.pdfIn PDF document text
- https://oferta.lt/i/File/kagozewujudedozodiretige.pdfIn PDF document text
- http://osingenieria.com/images/admin/file/3139952186.pdfIn PDF document text
- http://yeditepegumruk.com/userfiles/vuzivoturemivulawolafim.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/h9tk8ihvevdct0rmes24gi0bf5/47137911769.pdfIn PDF document text
- https://jahanchart.ir/data/files/file/bowobufexij.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/93268812022.pdfIn PDF document text
- http://nanobubblevietnam.com/uploads/userfiles/file/1075818544.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=dog+show+terrier+groupPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC6 | 17356 bytes |
SHA-256: 72d49856c6aaebc331701c6ace934a5a522bcdb31c1a4a48cd3a5f3d6554aadc |
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font_01_sfnt_off00011ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AC5 | 10408 bytes |
SHA-256: 96e5cc8cb7bd4a18a4aff965962eaee059f8173446509ad164c4e478de3b5a8a |
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font_02_sfnt_off00013291.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13291 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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